Common Controls Hub
The RHEL 8 file system automounter must be disabled unless required.
Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity.
Red Hat Enterprise Linux 8 Security Technical Implementation Guide
Check Text ( C-33171r568252_chk )
Verify the operating system disables the ability to automount devices.
Check to see if automounter service is active with the following command:
Note: If the autofs service is not installed, this requirement is not applicable.
$ sudo systemctl status autofs
autofs.service - Automounts filesystems on demand
Loaded: loaded (/usr/lib/systemd/system/autofs.service; disabled)
Active: inactive (dead)
If the "autofs" status is set to "active" and is not documented with the Information System Security Officer (ISSO) as an operational requirement, this is a finding.
Fix Text (F-33146r568253_fix)
Configure the operating system to disable the ability to automount devices.
Turn off the automount service with the following commands:
$ sudo systemctl stop autofs
$ sudo systemctl disable autofs
If "autofs" is required for Network File System (NFS), it must be documented with the ISSO.